25545042 has 24 divisors (see below), whose sum is σ = 57754944. Its totient is φ = 8144664.

The previous prime is 25545011. The next prime is 25545049. The reversal of 25545042 is 24054552.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 25544997 and 25545015.

It is not an unprimeable number, because it can be changed into a prime (25545049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30438 + ... + 31265.

It is an arithmetic number, because the mean of its divisors is an integer number (2406456).

Almost surely, 2^25545042 is an apocalyptic number.

25545042 is an abundant number, since it is smaller than the sum of its proper divisors (32209902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25545042 is a wasteful number, since it uses less digits than its factorization.

25545042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61734 (or 61731 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 25545042 is about 5054.2103240764. The cubic root of 25545042 is about 294.5114656607.

Adding to 25545042 its reverse (24054552), we get a palindrome (49599594).

The spelling of 25545042 in words is "twenty-five million, five hundred forty-five thousand, forty-two".